| Title: | "Wireless, Room Temperature Volatile Organic Compound Sensor Based on Polypyrrole Nanoparticle Immobilized Ultrahigh Frequency Radio Frequency Identification Tag" |
| Author(s): | Jun J; Oh J; Shin DH; Kim SG; Lee JS; Kim W; Jang J; |
| Address: | "School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul 151-742, Korea" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "Due to rapid advances in technology which have contributed to the development of portable equipment, highly sensitive and selective sensor technology is in demand. In particular, many approaches to the modification of wireless sensor systems have been studied. Wireless systems have many advantages, including unobtrusive installation, high nodal densities, low cost, and potential commercial applications. In this study, we fabricated radio frequency identification (RFID)-based wireless sensor systems using carboxyl group functionalized polypyrrole (C-PPy) nanoparticles (NPs). The C-PPy NPs were synthesized via chemical oxidation copolymerization, and then their electrical and chemical properties were characterized by a variety of methods. The sensor system was composed of an RFID reader antenna and a sensor tag made from a commercially available ultrahigh frequency RFID tag coated with C-PPy NPs. The C-PPy NPs were covalently bonded to the tag to form a passive sensor. This type of sensor can be produced at a very low cost and exhibits ultrahigh sensitivity to ammonia, detecting concentrations as low as 0.1 ppm. These sensors operated wirelessly and maintained their sensing performance as they were deformed by bending and twisting. Due to their flexibility, these sensors may be used in wearable technologies for sensing gases" |
| Keywords: | RFID tag polypyrrole sensor volatile organic compound wireless; |
| Notes: | "PubMed-not-MEDLINEJun, Jaemoon Oh, Jungkyun Shin, Dong Hoon Kim, Sung Gun Lee, Jun Seop Kim, Wooyoung Jang, Jyongsik eng 2016/12/10 ACS Appl Mater Interfaces. 2016 Dec 7; 8(48):33139-33147. doi: 10.1021/acsami.6b08344. Epub 2016 Nov 23" |
